EP 1543572 A1 20050622 - HIGH CAPACITY AND HIGH RATE BATTERIES
Title (en)
HIGH CAPACITY AND HIGH RATE BATTERIES
Title (de)
BATTERIEN MIT HOHER KAPAZITûT UND HOHER RATE
Title (fr)
PILES GRANDE CAPACITE ET GRANDE VITESSE
Publication
Application
Priority
- US 0322741 W 20030722
- US 39763102 P 20020722
Abstract (en)
[origin: WO2004010520A1] Improved batteries described herein generally comprise an electrolyte having lithium ions and a cathode comprising submicron metal vanadium oxide particles. In some embodiments, the battery demonstrate an accessible current capacity of a least about 220 mAh/g when pulsed in groups of four constant energy pulses at a current density of 30 mA/cm<2> to deliver 50 Joules per pulse. The four pulses of a pulse train are separated by 15 seconds of rest between each pulse, and there are 6 days between pulse groups, upon discharge down to a pulse discharge voltage of 2 V. In further embodiments, the batteries have an average internal electrical resistance of no more than 0.2 Ohms at a current density of at least about 30 mA/cm<2>. Furthermore, the batteries can have a current capability of at least about 0.4 amps per cubic centimeter battery volume. Due to the improved discharge performance, the batteries can exhibit no significant voltage delay throughout the life of the battery as demonstrated in a three month accelerated discharge test.
IPC 1-7
IPC 8 full level
A61N 1/378 (2006.01); H01M 4/04 (2006.01); H01M 4/1391 (2010.01); H01M 4/1397 (2010.01); H01M 4/34 (2006.01); H01M 4/38 (2006.01); H01M 4/40 (2006.01); H01M 4/46 (2006.01); H01M 4/48 (2010.01); H01M 4/485 (2010.01); H01M 4/62 (2006.01); H01M 4/02 (2006.01); H01M 4/54 (2006.01); H01M 4/58 (2010.01); H01M 10/052 (2010.01); H01M 10/36 (2010.01); H01M 10/42 (2006.01)
CPC (source: EP US)
H01M 4/0471 (2013.01 - EP US); H01M 4/06 (2013.01 - EP US); H01M 4/1391 (2013.01 - EP US); H01M 4/1397 (2013.01 - EP US); H01M 4/382 (2013.01 - EP US); H01M 4/485 (2013.01 - EP US); H01M 4/54 (2013.01 - EP US); H01M 6/16 (2013.01 - EP US); H01M 6/5088 (2013.01 - EP US); H01M 4/0435 (2013.01 - EP US); H01M 4/5825 (2013.01 - EP US); H01M 10/052 (2013.01 - EP US); H01M 2004/021 (2013.01 - EP US); H01M 2010/4292 (2013.01 - EP US); H01M 2300/004 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP)
Citation (search report)
See references of WO 2004010520A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004010520 A1 20040129; AU 2003256641 A1 20040209; CA 2493517 A1 20040129; EP 1543572 A1 20050622; JP 2005534149 A 20051110; US 2004121195 A1 20040624; US 7198869 B2 20070403
DOCDB simple family (application)
US 0322741 W 20030722; AU 2003256641 A 20030722; CA 2493517 A 20030722; EP 03765837 A 20030722; JP 2004523212 A 20030722; US 62422603 A 20030722